One day, the elderly-looking transfer student Tanaka Shori, AKA Billy, arrives at the school. He proclaims himself a scientific genius, but he's actually a commander in the enemy organization! He declares that he'll use his own formula to ascertain Twin Angel's secret identities, but...
Th-That's right!
!هـ-هذا صحيح
G-Genau!
¡Sí!
¡Sí!
G-Già!
É-É verdade!
Т-точно!